Formation of O-ethylhomoserine by bacteria.
Resting cells of Corynebacterium sp. E17 formed O-ethylhomoserine from ethyl alcohol for a few hours. Addition of l-homoserine greatly enhanced its formation. Thus, the formation of O-ethylhomoserine from ethyl alcohol by 27 bacteria, 6 yeasts, and 4 fungi was investigated by using growing cultures and resting cells in the presence of l-homoserine. The O-ethylhomoserine formed in the culture supernatant fluids or supernatant fluids of the reaction mixtures was identified by paper chromatography. Many organisms which were incapable of forming O-ethylhomoserine with growing cultures formed it with resting cells. The formation of O-ethylhomoserine appears to be restricted to strains of Brevibacterium, Corynebacterium, Bacillus, Mycobacterium, Nocardia, and Streptomyces.
D001407:Bacillus / Q000378:metabolism; D001419:Bacteria / Q000378:metabolism*; D001951:Brevibacterium / Q000378:metabolism; D002854:Chromatography, Paper; D003352:Corynebacterium / Q000378:metabolism*; D007532:Isoleucine / Q000032:analysis; D007930:Leucine / Q000032:analysis; D009161:Mycobacterium / Q000378:metabolism; D009615:Nocardia / Q000378:metabolism; D012694:Serine / Q000032:analysis / Q000096:biosynthesis*; D013302:Streptomyces / Q000378:metabolism; D014633:Valine / Q000032:analysis
D007532:Isoleucine; D012694:Serine; D007930:Leucine; D014633:Valine